Slow crustal deformation of Haiyuan fault in the northeast Tibetan plateau observed by PS-InSAR

Author

Qu Chunyan ; Shan Xinjian ; Xu Xiaobo ; Zhang Guohong ; Song Xiaogang ; Zhang Guifang ; Liu Yunhua

Author_Institution

State Key Lab. of Earthquake Dynamics, China Earthquake Adm., Beijing, China

fYear

2013

fDate

21-26 July 2013

Firstpage

133

Lastpage

136

Abstract

We attempted to detect tiny interseismic crustal deformation on the Haiyuan fault using the PS-InSAR method and 17 ENVISAT/ASAR images in descending orbit. The result shows that homogeneity and consistency in space, and stability and linear variance in time characterize deformation rates of PS points in study area. Mean while conspicuous contrast of deformation rates is present on opposite sides of the Haiyuan fault, with a relative motion rate in line of sight about 5mm/a in the central segment. These estimates are in accordance with the results of 2~10mm/yr determined by geological and geodetic methods.

Keywords

Earth crust; faulting; geodesy; radar interferometry; remote sensing by radar; seismology; synthetic aperture radar; ENVISAT/ASAR images; Haiyuan fault; PS points; PS-InSAR method; deformation rates; descending orbit; geodetic method; geological method; interseismic crustal deformation rates; line of sight; northeast Tibetan Plateau; relative motion rate; slow crustal deformation; Earthquakes; Extraterrestrial measurements; Geologic measurements; Geology; Global Positioning System; Orbits; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6721110

Filename

6721110